Year	constant 2015 US$
2007	2028612509.2710466
2008	2083046567.9979274
2009	2997482936.2876596
2010	3890021547.80368
2011	3274700049.7420425
2012	3832785638.4240975
2013	3850420218.795841
2014	4338814914.338305
2015	3045848054.2446914
2016	2397901996.715365
2017	1804706058.7466288
2018	1921034117.101233
2019	2048106497.1362739
2020	1751131054.9278495
2021	1675731874.0264168
2022	1573761059.7236311
2023	2562018368.774495